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Comparison of the performances of the LS and the MMSE channel estimators for a 64 sub carrier OFDM system based on the parameter of Mean square erro

利用改进的fxlms算法降噪，另附有自编fxlms函数代码(The improved noise reduction algorithm fxlms, self fxlms have attached the function code)

语音处理说话人识别 人工智能 ，实现基于VQ和GMM的说话人识别系统，通过增减训练数据或调整系统参数，对比分析一下基于VQ和GMM的说话人识别系统性能差别。(Speech processing speaker recognition, artificial intelligence realization of speaker recognition system based on VQ and GMM, through the training data increase or decrease or adjust the system parameters, the contrast analysis on the basis of VQ and GMM speaker recognition system performance difference.)

Matlab file okumura models

基于随机共振的弱信号检测，sr为龙格库塔方法解方程，rs为检测的主程序(Based on stochastic resonance in weak signal detection, sr for the Runge-Kutta method to solve the equation, rs for the detection of the main program)

ros by example volume2 hydro ubuntu

码分多址，是在无线通讯上使用的技术，CDMA 允许所有的使用者同时使用全部频带(1.2288Mhz)的系统仿真(CDMA is used in wireless communications technology, CDMA allows all users to simultaneously use all bands (1.2288Mhz) System Simulation)

Gabor小波变换技术对医学CT图像进行纹理特征分类时，由于图像拍摄角度的变化会造成分类的误差。针对以上问题，在Gabor小波变换的基础上提出一种用于分析旋转不变医学图像的方法。该方法采用旋转规范化，即特征元素的循环移位使规范化后所有的图像都具有相同的主方向。实验结果表明，加入旋转规范化循环算子的Gabor小波变换在医学CT图像纹理特征分类时能够达到较好的精确度。(Gabor wavelet transform lacks in its ability to classify the medical CT image if it’s rotation invariant image. Aiming at the problem, an approach is presented for rotation invariant medical texture classification based on Gabor wavelet transform. Rotation normalization is achieved by circular shift of the feature elements, so that all images have the same dominant direction. Experimental result shows that Gabor wavelet transform with circular operator of rotation normalization has well precision to classify the medical CT image.)

说明：  给出了基于MATLAB的一百种使用程序，每一个均可以直接拿来使用，使学习MATLAB事半功倍，举一反三(Is given based on the 100 kinds of MATLAB use the program, each one can be brought directly to the use of MATLAB to make learning more effective, learn by analogy)

NSString框架的学习，包括NSNumber等 NSString框架的学习，包括NSNumber等(NSString framework of learning, including learning NSNumber etc. NSString framework, including NSNumber etc.)